Department of Metallurgy
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Faculty of Engineering
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Iwate University
,
Morioka 020
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Japan A.Chiba S.Hanada Institute for Materials Research
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Tohoku University
,
Sendai 980
,
Japan
材料科学技术（英文）
This paper reviews recent research on ductility improvement of B-undoped Ni_3Al alloys.Ni_3Al binary alloys with hypostoichiometric compositions show appreciable ductility at room temperature when the samples are prepared by recrystallization annealing after cold pressing,although the alloys with st...
关键词:
ductility
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null
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C. M. Liu1)
,
K. Abiko2) and M. Tanino2) 1) Schoolof Materials and Metallurgy
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Northeastern University
,
Shenyang 110006
,
China 2) Institute for Materials Research
,
Tohoku University
,
Sendai980
,
Japan
金属学报(英文版)
Effectoftheintergranularsegregationof Sonthehot ductilityof high purityiron wasquan titativelyinvestigated using high purityiron specimenscontaining < 2 ,5,10 ,20 and 60massppm Sby scanning AES,tensiletests under high vacuum and SEMof the fracturedsurface. The main resultsareasfollows: high puri...
关键词:
high purityiron
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null
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null
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null
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null
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C. M. Liu1)
,
K. Abiko2) and M. Tanino2) 1) Schoolof Materials and Metallurgy
,
Northeastern University
,
Shenyang 110006
,
China 2) Institute for Materials Research
,
Tohoku University
,
Sendai980 8579
,
Japan
金属学报(英文版)
Theeffectof phosphorusonthehotductility andthesegregation ofsulfuratgrain boundariesin high purityironcontaining 0 002 % sulfur werequantitativelyinvestigated bytensiletestat973 K, SEMobservation of fracture surface and scanning Auger electron spectroscopy.Theexperimental resultscan besum marized a...
关键词:
high purity iron
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null
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WANG Ruikun SUN Lihong LI Dongpei YING Qiming T.Takeyama General Research Institute for Non-Ferrous Metals
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Beijing
,
China [Originally published in ACTA METALL SIN (CHINESE EDN) 24 (5) 1988 pp B353—B358
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received 6 May 1987
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in revised form 6 February 1988] T.Takeyama is an emeritus professor of HOKKAIDO University
,
Japan
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and now is a technical adviser of GRINFM
金属学报(英文版)
The magnetic domain structure and related magnetic properties of (NdPr)_(16)Fe_(76)B_8 permanent magnet have been studied by colloid-SEM method.In thermally demagnetized state,the ma- trix grains in the magnet generally exhibit multidomain structure,i.e.,180° plate-like indi- vidual domain and a few...
关键词:
Nd-Fe-B permanent magnet
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null
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null
J
,
H
,
Wang
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H. Lu and H. Murakawa 1) Shanghai Jiao Tong University
,
Shanghai 200030.China 2) Osaka University
,
Japan
金属学报(英文版)
Local postweld heat treatment (PWHT)is usually performed when it is impractical to heat treat the whole vessel in a furnace, Many factors have an influence on PWHT procedures, such as size of the pipe,heated widths, insulation conditions, heating rates soak temperatures and hold times, material com...
关键词:
postweld heat treatment
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null
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null
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LIU Shicheng Dalian Railway Institute
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Dalian
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ChinaHAMAGOCHI Yoshikazu KUWANO Hisashi Muroran Institute of Technology
,
Muroran
,
Japan
金属学报(英文版)
The precipitation behaviour of Fe-Cr-Mo and Fe-Cr-W alloys during aging has been ex- perimentally studied.It was found that in the early stage of aging,a metastable R phase pre- cipitated in both alloys,it was transformed into stable μ-phase,Laves-phase,X-phase or σ-phase in the later stages.The cry...
关键词:
Fe-Cr-Mo alloy
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null
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null
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